Sensitive file read via path traversal
Published May 5, 2022 · Updated Sep 16, 2024
Path traversal in QNAP QTS, QuTS hero, and QuTScloud before fixed builds allows remote attackers to read sensitive files via thttpd. The thttpd request handler fails to limit a requested pathname to its intended restricted directory, allowing traversal to unexpected files. The advisory does not require authentication or user interaction, and the demonstrated consequence is confidentiality loss through unauthorized file access; exact handler details are not publicly disclosed.
Summary
What happened
Path traversal in QNAP QTS, QuTS hero, and QuTScloud before fixed builds allows remote attackers to read sensitive files via thttpd. The thttpd request handler fails to limit a requested pathname to its intended restricted directory, allowing traversal to unexpected files. The advisory does not require authentication or user interaction, and the demonstrated consequence is confidentiality loss through unauthorized file access; exact handler details are not publicly disclosed.
The record
- CVE
- CVE-2021-38693
- Published
- May 5, 2022
- Updated
- Sep 16, 2024
- Vendor
- Linn Products Limited
- Product
- QuTS hero
- Classifications
- CWE-22, T1005
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 5, 2022CVE publishedPublication date reported by the CVE source.
- Sep 16, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <h4.5.4.1951 build 20220218
- Affected versionversion=unspecified <h5.0.0.1949 build 20220215
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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